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Related Experiment Videos

Structure determination from powder diffraction data.

W I F David1, K Shankland

  • 1ISIS Facility, Rutherford Appleton Laboratory,Chilton, Oxon OX11 0QX, UK. bill.david@rl.ac.uk

Acta Crystallographica. Section A, Foundations of Crystallography
|December 25, 2007
PubMed
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Recent advances in powder diffraction data analysis have improved molecular crystal structure determination. New methods are needed for inorganic structures, and complementary techniques like NMR and combined X-ray/neutron diffraction show promise for future structure verification.

Area of Science:

  • Crystallography
  • Materials Science
  • Structural Chemistry

Background:

  • Powder diffraction is a key technique for determining crystal structures.
  • Significant algorithmic progress has been made in the past decade.
  • Current methods show success for molecular crystals but limitations for inorganic materials.

Purpose of the Study:

  • To review advances in structure determination from powder diffraction data.
  • To highlight algorithmic developments, successes, and limitations.
  • To assess future prospects, including complementary techniques and protein crystallography.

Main Methods:

  • Review of algorithmic developments in structure determination from powder diffraction data.
  • Discussion of global optimization methods for molecular crystal structures.

Related Experiment Videos

  • Exploration of complementary techniques (NMR) and combined diffraction data (X-ray, neutron).

    • Main Results:

    • Global optimization methods are successful for molecular crystal structures.
    • New methods are required for routine solution of inorganic crystal structures.
    • Complementary techniques and combined diffraction data show potential for structure verification and solution.

    Conclusions:

    • Structure determination from powder diffraction has advanced significantly, particularly for molecular crystals.
    • Further methodological development is crucial for inorganic crystal structure determination.
    • The integration of various techniques holds promise for future advancements in crystallography.